Table 1. Annual Average Global Budgets of 210Pb and 7Be in the Troposphere+Stratosphere for 2013
                               210Pb         7Be
  Burden, g                   278.201      20.2953
  Sources, g d-1              32.3102     0.403345
    stratosphere             0.132042     0.270660
    troposphere               32.1782     0.132685
  Sinks, g d-1                32.3924     0.403704
    dry deposition            3.30792   0.00933756
    wet deposition      
      stratiform              20.5649     0.104168
      convective              8.49623    0.0261372
    radioactive decay       0.0234049     0.264061
 
  Accumulation Term     
    Initial mass, g           245.171      20.4939
    Final   mass, g           244.184      20.4935
    Difference, g           -0.987289 -0.000387192